This 1 meter (~3 feet) fiber optic cable is terminated with a SC (Subscriber Connector) connector on one end and a ST (Straight Tip/Bayonet Connector) connector on the other end. It is a multimode fiber (50 micron core) designed to transmit data across shorter distances at LAN speeds. The cord is duplex (two fibers) which means it permits synchronous communication between devices. The cladding diameter is 125 microns.